package socket;

import java.io.*;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;

//客户端
public class Client {
    private Socket socket;
    public Client(){
        try {
            /*
            实例化Socket时就是与远程服务器建立连接的过程
            需要传递两个参数:
            1.服务器的IP地址,用于找到网络上对方的计算机
            2.服务端口,用于找到服务器计算机上的服务端
             */
            System.out.println("正在连接服务器!");
            socket = new Socket("172.18.5.64",8088);
            System.out.println("与服务短连接成功!");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void start(){
        //低级流,作用:将写出的字节发送给建立连接的远程计算机
        try {
            OutputStream os = socket.getOutputStream();
            OutputStreamWriter osw = new OutputStreamWriter(os, StandardCharsets.UTF_8);
            BufferedWriter bw = new BufferedWriter(osw);
            PrintWriter pw = new PrintWriter(bw,true);//自动行刷新

            Scanner scanner = new Scanner(System.in);
            while (true){
                String line = scanner.nextLine();
                if ("exit".equals(line)){
                    break;
                }
                pw.println(line);
            }
            pw.close();
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            try {
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        Client client = new Client();
        client.start();
    }
}